Check that water comes out of the exhaust pipe and, in case it does not, slightly accelerate with engine idling for a few seconds.
Otherwise stop engines, troubleshoot the problem or call for Assistance Service.
Run the engines slightly higher than idle run until they have reached the operation temperature.
Check for abnormal noises or excessive smoke.
Otherwise stop engines and call for Assistance Service.
Check that alternators load the batteries.
Verify the efficiency of the instrument system from the plotter to the radar, VHF, compass, etc..
Plug out the shore cable if connected.
Remove moorings and check for loose mooring ropes or floating objects hindering the propellers’ movement.

DANGER

Make sure that no crew stands in front of gas exhausts and near the mooring ropes.